Study suggests humans mated with Neanderthals
2010 05 01
By Clara Moskowitz | CSMonitor.com
Humans today could be part Neanderthal, according to a new study that found our ancestors interbred with an extinct hominid species some millennia ago.
Neanderthals walked the Earth between about 130,000 and 30,000 years ago. While they co-existed with modern humans for a while, eventually they went extinct and we didn’t. There has been intense scientific debate over how similar the two species were, and whether they might have mated with each other.
A reconstruction is shown at the Neanderthal Museum in Mettmann, Germany, where the first remains of Neanderthal Man were found in 1856. A new study has found signs of ’some significant amount’ of interbreeding between early humans and Neanderthals.Newscom/File
"The issue has been highly contentious for some time," said University of New Mexico genetic anthropologist Keith Hunley.
Last week at the annual meeting of the American Association of Physical Anthropologists in Albuquerque, N.M., Hunley and colleagues presented the results of a new study that found evidence for interbreeding between modern humans and some other extinct ancient human species – either Neanderthals (Homo neanderthalensis) or another group such as Homo heidelbergensis. The research was first reported by NatureNews.
The researchers looked at DNA samples from humans living today, and found signs of leftover Neanderthal genes introduced from this interbreeding. They looked at genetic data from almost 2,000 people around the world, and calculated how much genetic variation existed between samples. The results indicate that some extinct group of hominids mixed their genes with ours at two points in history, Hunley said.
One period of interbreeding probably occurred shortly after Homo sapiens migrated out of Africa around 60,000 years ago. The researchers found an excess of genetic diversity in all modern people except Africans, suggesting that the influx of Neanderthal-like DNA came after the exodus from Africa.
A second period of interbreeding is suggested by the fact that the researchers measured even more genetic diversity among people of Oceanic descent – people from Australia, New Zealand, New Guinea and other Pacific islands.
"I think we show there’s clear evidence in the genome of living people of this mixture," Hunley told LiveScience. "The fact that there’s a clear signal implies that there was some significant amount" of interbreeding, he said.
This work is the first time scientists have used DNA from living people to look at this question, Hunley said.
In an earlier study, Erik Trinkaus of Washington University in St. Louis found suggestions of Neanderthal and modern human interbreeding by comparing ancient bone fossils from the two species.
Trinkaus said the new work fits into his findings, though he hasn’t reviewed the details yet since Hunley’s paper has not yet been published in a peer-reviewed journal. "The conclusion makes sense and fits with the majority of the data available," Trinkaus said.
Another anthropologist who has studied Neanderthal anatomy agreed.
"I have been arguing for this position throughout my career, ever since I began to study Neandertals and other populations," said Milford Wolpoff of the University of Michigan. "It has always seemed clear that some Neandertal anatomy appears in living populations."
Not everyone, though, will be easily convinced yet, Hunley said.
Article from: CSMonitor.com
X Woman: Not human, not Neanderthal, what is she?
Fossil DNA tells tales of red-haired Neanderthals
Scientists believe that Neanderthal Man was not related to Homo Sapien (Video)
Neanderthal DNA degradation (Video)
Human Likely Killed Neanderthal, Weapons Test Shows
Scientists unravel Neanderthal genome
Return of the Neanderthals
Neanderthal, Human Ancestor Could Chat
Neanderthals: More Advanced Than Thought?
Some Neanderthals Were Redheads
Researchers may remake Neanderthal DNA
Early human relative predates even dinosaurs
Lloyd Pye - Everything you Know is Wrong (Video)
Latest News from our Front Page
What happened to Journalist Serena Shim? Assassinated? Find out what happened to Serena, Press TV director calls on Turkey
2014 10 21
Press TV news director Hamid Reza Emadi says the “suspicious death,” of the news channel’s correspondent in Turkey is a tragedy for “anyone who wants to get the truth.”
Emadi made the remarks in an interview with Press TV on Sunday following Serena Shim’s death across the border from Syria’s Kurdish city of Kobani, where the ISIL terrorists and Kurdish fighters ...
Ancient Roman Nanotechnology Inspires Next-Generation Holograms for Information Storage
2014 10 21
The Lycurgus Cup, as it is known due to its depiction of a scene involving King Lycurgus of Thrace, is a 1,600-year-old jade green Roman chalice that changes colour depending on the direction of the light upon it. It baffled scientists ever since the glass chalice was acquired by the British Museum in the 1950s, as they could not work ...
Rapid Geomagnetic Reversal Possibility: Confirmed
2014 10 21
From the video: "The scientists who conducted the study are still unsure why the magnetic field is weakening, but one likely reason is the Earth’s magnetic poles are getting ready to flip, said Rune Floberghagen, the ESA’s Swarm mission manager. In fact, the data suggest magnetic north is moving toward Siberia."
Tune into Red Ice Radio:
Ben Davidson - Suspicious0bservers: Space Weather ...
Georgia Guide Stone 2014 cube stone removal
2014 10 21
From: Youtube: Was it all just a gag? it seems the cube stone just happens to be made out of the same Elberton granite that the rest of this morbid monument is made from.
Secret Project Created Weaponized Ebola In South Africa In The 1980s
2014 10 21
“No records are available to confirm that the biological agents were destroyed.”
Operating out of South Africa during the Apartheid era in the early 1980’s, Dr. Wouter Basson launched a secret bioweapons project called Project Coast. The goal of the project was to develop biological and chemical agents that would either kill or sterilize the black population and assassinate political enemies. ...
|More News » |